Chapter 7 Review - Electrical Circuits Flashcards

You may prefer our related Brainscape-certified flashcards:
1
Q

Voltage

A

The amount of electrical potential per 1 coulomb of charge.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Resistance

A

The property of any material that shows the flow of electrons.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Ohm’s Law

A

The mathematical relationship comparing voltage, current, and resistance.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Resistor

A

An electrical component with a set amount of resistance that slows down current and transform electrical energy into other forms of energy.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Formula for Voltage

A

V= IR

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Unit for Voltage

A

Volts (V)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Unit for Current

A

Amperes (A)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Unit for Resistance

A

Ohms (omega)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Formula for Current

A

I = V~R

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Formula for Resistance

A

R = V~I

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

Current

A

The continuous flow of charge in a complete circuit.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

The current is the same throughout the circuit.

A

Series.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

Adding a resistor will decrease the total resistance of the circuit.

A

Parallel.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

The voltage across each resistor in the circuit is the same.

A

Parallel.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

There is only one pathway for electrons to flow.

A

Series.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Adding a resistor will increase the total resistance of the circuit.

A

Series.

17
Q

There is more than one pathway for current to flow.

A

Parallel.

18
Q

As more cells are added to the circuit, the brightness of the light bulb increases.

A

Series.

19
Q

There are junction points in the circuit.

A

Parallel.

20
Q

If the current through one load in the circuit goes to 0A, the current through all other loads remains the same.

A

Parallel.

21
Q

The sum of the voltages across the loads equals the total voltage supplied by the battery.

A

Series.

22
Q

The total current entering a junction point equals the sum of the current leaving junction point.

A

Parallel.

23
Q

T or F?

An electric circuit is a complete pathway through which electrons can flow.

A

True.

24
Q

T or F?

An electric load transforms light energy into electrical energy.

A

False. electrical energy

other forms of energy.

25
Q

T or F?

Light bulbs, heaters, and batteries are all example of electric loads.

A

True.

26
Q

T or F?

The wire through which electric current flows is a conductor.

A

True.

27
Q

T or F?

A switch is the source of electric potential energy in a circuit.

A
False. Switch
The battery (cell).
28
Q

T or F?

Circuit diagrams use circuit symbols to illustrate actual electrical circuits.

A

True.

29
Q

T or F?

Current electricity is charge the remains stationary on an insulator.

A

False. Remains stationary on an insulator.

Moves through a conductor.

30
Q

T or F?

Electric current is the amount of charge passing a point in a conducting wire each second.

A

True.

31
Q

T or F?

Electric current is measured in Volts.

A

False. Volts.

Amperes.

32
Q

T or F?

An ammeter is used to measure the current in a circuit.

A

True.

33
Q

Series Circuit.

Resistors increase. Current,

A

Stays the same.

34
Q

Series Circuit.

Resistors increase. Resistance,

A

Increases.

35
Q

Parallel Circuit.

Resistors increase. Current,

A

Drops.

36
Q

Parallel Circuits.

Resistors increase. Resistance,

A

Stays the same.

37
Q

Resistance is increased in a circuit.

A

Voltage will increase and current will decrease.